Why SPICE and other simulation systems don't work.
Take any small signal NPN transistor.
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Connect BASE to ground.
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Connect EMITTER to about +12 volts DC through about a 1K resistor The
base-emitter junction is biased opposite to normal. There has to be enough
voltage to break down the reverse biased base-emitter junction - somewhat
like a zener diode - 12 volts should suffice in most cases.
Then:
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Predict the voltage expected on the (open circuit) COLLECTOR via a SPICE
model of the circuit in any AC Circuit simulator you care to use. Do this
1st before you measure.
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Take an oscilloscope or standard electronic multimeter (typically 10M ohm
plus input resistance) and measure voltage between COLLECTOR (floating) and
ground.
Explain your result.
Clue - you cannot break the laws of Physics, even though it appears that's
what's happening here :-) - but you do need to KNOW them.
The result you will get is: -0.35V. (NEGITIVE!)
If you use a metal transistor you can open the case and _SEE_ what happens.
The reverse-biased junction produces light, and it causes the other junction
to produce electricity(all those junctions are silicon solar cells, after
all!).
I doubt if your spice models accounted for this. But even if it does,
"Simulations are doomed to succeed."
See: